My friend keeps on asking me to hit her, and I'm getting very uncomfortable. She keeps on asking me to "Hit her in the back" or "Punch her arm" or "Flick her forehead". I have never been comfortable with hurting another person, especially not a friend I care about. I always tell her I don't want to hit her, because I am a 6 foot tall dude, and I could do some damage if I don't self restrain. Every time I did comply, I hit her lightly, and she kept saying that it wasn't hard enough. I just don't want to hit her, and it makes me kinda uncomfortable too.